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/*=========================================================================
Program: GDCM (Grassroots DICOM). A DICOM library
Copyright (c) 2006-2011 Mathieu Malaterre
All rights reserved.
See Copyright.txt or http://gdcm.sourceforge.net/Copyright.html for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
#include "gdcmPresentationContextRQ.h"
#include "gdcmPresentationContext.h"
#include "gdcmUIDs.h"
#include "gdcmSwapper.h"
#include "gdcmAttribute.h"
#include "gdcmGlobal.h"
#include "gdcmMediaStorage.h"
#include <limits>
namespace gdcm
{
namespace network
{
const uint8_t PresentationContextRQ::ItemType = 0x20;
const uint8_t PresentationContextRQ::Reserved2 = 0x00;
const uint8_t PresentationContextRQ::Reserved6 = 0x00;
const uint8_t PresentationContextRQ::Reserved7 = 0x00;
const uint8_t PresentationContextRQ::Reserved8 = 0x00;
PresentationContextRQ::PresentationContextRQ()
{
ID = 0x01;
ItemLength = 8;
assert( (size_t)ItemLength + 4 == Size() );
}
PresentationContextRQ::PresentationContextRQ( UIDs::TSName asname, UIDs::TSName tsname )
{
ID = 0x01;
AbstractSyntax as;
as.SetNameFromUID( asname );
SetAbstractSyntax( as );
TransferSyntaxSub ts;
ts.SetNameFromUID( tsname );
assert( TransferSyntaxes.empty() );
AddTransferSyntax( ts );
}
std::istream &PresentationContextRQ::Read(std::istream &is)
{
//uint8_t itemtype = 0x0;
//is.read( (char*)&itemtype, sizeof(ItemType) );
//assert( itemtype == ItemType );
uint8_t reserved2;
is.read( (char*)&reserved2, sizeof(Reserved2) );
uint16_t itemlength;
is.read( (char*)&itemlength, sizeof(ItemLength) );
SwapperDoOp::SwapArray(&itemlength,1);
ItemLength = itemlength;
uint8_t id;
is.read( (char*)&id, sizeof(ID) );
ID = id;
uint8_t reserved6;
is.read( (char*)&reserved6, sizeof(Reserved6) );
uint8_t reserved7;
is.read( (char*)&reserved7, sizeof(Reserved7) );
// assert( reserved7 == 0 );
//no need for this assert--'This reserved field shall be sent with a value 00H but not tested to this value when received.'
uint8_t reserved8;
is.read( (char*)&reserved8, sizeof(Reserved6) );
SubItems.Read( is );
size_t curlen = 0;
size_t offset = SubItems.Size() + 4;
while( curlen + offset < ItemLength )
{
TransferSyntaxSub ts;
ts.Read( is );
TransferSyntaxes.push_back( ts );
curlen += ts.Size();
}
assert( curlen + offset == ItemLength );
assert( (size_t)ItemLength + 4 == Size() );
return is;
}
const std::ostream &PresentationContextRQ::Write(std::ostream &os) const
{
assert( (size_t)ItemLength + 4 == Size() );
os.write( (char*)&ItemType, sizeof(ItemType) );
os.write( (char*)&Reserved2, sizeof(Reserved2) );
uint16_t copy = ItemLength;
SwapperDoOp::SwapArray(©,1);
os.write( (char*)©, sizeof(ItemLength) );
os.write( (char*)&ID, sizeof(ID) );
os.write( (char*)&Reserved6, sizeof(Reserved6) );
os.write( (char*)&Reserved7, sizeof(Reserved7) );
os.write( (char*)&Reserved8, sizeof(Reserved8) );
SubItems.Write(os);
std::vector<TransferSyntaxSub>::const_iterator it = TransferSyntaxes.begin();
for( ; it != TransferSyntaxes.end(); ++it )
{
it->Write( os );
}
return os;
}
size_t PresentationContextRQ::Size() const
{
size_t ret = 0;
ret += sizeof(ItemType);
ret += sizeof(Reserved2);
ret += sizeof(ItemLength);
ret += sizeof(ID);
ret += sizeof(Reserved6);
ret += sizeof(Reserved7);
ret += sizeof(Reserved8);
ret += SubItems.Size();
std::vector<TransferSyntaxSub>::const_iterator it = TransferSyntaxes.begin();
for( ; it != TransferSyntaxes.end(); ++it )
{
ret += it->Size();
}
assert(ret <= (size_t)std::numeric_limits<uint16_t>::max);
assert(ret >= 4);
return ret;
}
void PresentationContextRQ::SetAbstractSyntax( AbstractSyntax const & as )
{
SubItems = as;
ItemLength = (uint16_t)(Size() - 4);
assert( (size_t)ItemLength + 4 == Size() );
}
void PresentationContextRQ::AddTransferSyntax( TransferSyntaxSub const &ts )
{
TransferSyntaxes.push_back( ts );
ItemLength = (uint16_t)(Size() - 4);
assert( (size_t)ItemLength + 4 == Size() );
}
void PresentationContextRQ::SetPresentationContextID( uint8_t id )
{
assert( id );
ID = id;
}
uint8_t PresentationContextRQ::GetPresentationContextID() const
{
return ID;
}
void PresentationContextRQ::Print(std::ostream &os) const
{
//static const uint8_t ItemType;
//static const uint8_t Reserved2;
os << "ItemLength: " << ItemLength << std::endl; // len of last transfer syntax
os << "PresentationContext ID: " << (int)ID << std::endl;
//static const uint8_t Reserved6;
//static const uint8_t Reserved7;
//static const uint8_t Reserved8;
SubItems.Print( os );
std::vector<TransferSyntaxSub>::const_iterator it = TransferSyntaxes.begin();
for( ; it != TransferSyntaxes.end(); ++it )
{
it->Print( os );
}
}
PresentationContextRQ::PresentationContextRQ(const PresentationContext & in)
{
AbstractSyntax as;
as.SetName( in.GetAbstractSyntax() );
SetAbstractSyntax( as );
size_t n = in.GetNumberOfTransferSyntaxes();
TransferSyntaxes.clear();
for( size_t j = 0; j < n; ++j )
{
TransferSyntaxSub ts;
ts.SetName( in.GetTransferSyntax(j) );
AddTransferSyntax( ts );
}
SetPresentationContextID( in.GetPresentationContextID() );
assert( GetNumberOfTransferSyntaxes() == in.GetNumberOfTransferSyntaxes() );
}
} // end namespace network
} // end namespace gdcm
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